28423915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{887}}^1$

素因数の和:951

約数の個数: 32

約数和(自身を含む): 40279680

約数和(自身を除く): 11855765

約数列:

[1, 5, 13, 17, 29, 65, 85, 145, 221, 377, 493, 887, 1105, 1885, 2465, 4435, 6409, 11531, 15079, 25723, 32045, 57655, 75395, 128615, 196027, 334399, 437291, 980135, 1671995, 2186455, 5684783, 28423915]

約数ペア:

[(1, 28423915), (5, 5684783), (13, 2186455), (17, 1671995), (29, 980135), (65, 437291), (85, 334399), (145, 196027), (221, 128615), (377, 75395), (493, 57655), (887, 32045), (1105, 25723), (1885, 15079), (2465, 11531), (4435, 6409)]